Sash control



J. L. TURNER SASH CONTROL Nov. 6, 1934.

Original Filed July 51, 1930 2 Sheets-Sheet 1 Jam Z. Tamer INVENTOR BY M16 ATTORNEY5 J. L. TURNER SASH CONTROL Nov. 6, 1934.

Original Filed July 51, 1930 2 Sheets-Sheet 2 ATTORNEYS Patented Nov. (5, 1934 SASH CONTROL John L. Turner, St. Louis, Mo.

Application July 31, 1930, Serial No. 472,089

. Renewed April 26, 1934 3 Claims.

- My invention relates to improvements in sash control, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object of my invention is to provide a sash control in which means is employed whereby a window may be easily and quickly moved to various positions. p

A further object is to provide a device of the type described in which means is employed whereby a simple frame construction is obtained and the necessity for sash weights, cords, pulleys and the like has been eliminated.

A further object is to provide a device of the type described in which means is employed whereby a window may be associated withits frame by means of a simple structure and in which said simple structure performs a twofold function in that it acts as a guide for the sash and at the same time serves as a sealing element.

Other objects and advantages will appear in the following specification, and the novel featuresof the invention will be particularly pointed out in'the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this application, in which Figure 1 is an elevation of a structure embodying my invention,

Figure 2 is an enlarged sectional detailed view of my invention,

Figure 3 is a sectional vview taken along the line 3-3 of Figure 2,

Figure a is a sectional view taken along the line 4 4 of Figure 3,

Figure 5 is an enlarged sectional detailed View of a portion of my device, and

Figure 6 is a sectional detailed view of a portion of my invention.

In carrying out my invention, I make use of a frame 1 which is associated with a portion of a wall 2. An upper sash 3 and a lower sash 4 are disposed within the frame. The upper sash comprises a top rail 5 and side rails 6 and 7 while the bottom sash comprises a check rail 8, side rails 9 and 10, and a bottom rail 11. The upper sash also comprises in part a check rail which is hidden from view in Figure 1 by reason of the fact that this rail is positioned behind the check rail associated with the lower sash.

A sash control is associated with each side rail. In view of the fact that all or" the sash controls are identical in construction, the description will be limited to a single control. The sash rail 10, see Figures 2 and 4, is recessed as at 12. The

(Cl. l6-201) recess preferably cuts out a portion of one side of the rail and a portion of its outer edge. This construction is clearly shown in Figure 3. It will be understood, however, that the recess may be out in various shapes.

A strap 13 is disposed within the recess. The strap is preferably bent at 14 and 15 for providing portions 16 and 17, respectively, which fit against the ends of the recess. These portions may be bent for forming retaining elements 18. Screws 19 may be passed through these elements for rigidly securing the strap within the recess.

The strap portions 16 and 17 support a pair of bars or shafts 20 and 21. The ends of the rods are threaded and passed through openings in the portions 16 and 17. The rod 20 is rigidly secured against rotation by means of nuts 22. The rod 21 is rotatably mounted. A plurality of nuts 23 is disposed upon each end of this rod. The group associated with each end may be rigidly locked together. A sleeve 24 is rigidly secured upon the rod 20 and is provided with a shaft 25 upon which a compound gear 26 is rotatably mounted. The gear 26 is provided with a portion 27 which is disposed in mesh with a beveled gear 28 rigidly mounted upon the rod 21. One end of the shaft 25 is fixedly connected with a ring 29 secured upon a sleeve 30. The rod 21 is rotatably positioned within the sleeve 30. The lower end of the sleeve 30 rests upon a flange 31 which is secured to the rod 20.

A coil spring 32 is mounted upon the rod 21 and between the beveled gear 28 and the portion 16. One end of the spring-is rigidly connected with the gear 28 so that when the latter is rotated through the medium of the compound gear 26 the spring will be wound or unwound, depending on the direction of rotation. The upper end of the spring is rigidly connected with any fixed support as, for instance, the rod 20, see Figure 4. Springs of this type tend to buckle in various directions upon winding.

I have provided a tubular member 33 for snugly enclosing the spring. One end of the tubular member is rigidly connected upon the hub portion of the gear 28. The upper end of the tubular member may be free.

The frame 1 is grooved for receiving a rack 34, see' Figure 3. The rack is disposed in mesh with a gear 35. The rack is fixed to the frame. Thus it will be seen that when the sash is moving in either direction the rod 21 will be rotated through the medium of the gears. The jambs of the frame and the head jamb are provided with a continuous groove which is associated with the each side.

upper sash, and the side jambs and the sill are similarly provided with a continuous groove in association with the lower sash. The racks associated with the sashes are disposed within these grooves. The upper sash is provided with a continuous groove in its side rails and top rail and the lower sash is provided with a continuous groove in its side rails and bottom rail. In referring to Figure '3, it will be noted that the rack 34 is positioned within a groove 38 in the sash rail. Guide elements equal in dimension to the racks may be placed within the grooves in the frame. Thus it will be seen that the guide ele-' ments function as a sealing means. Further than this, the racks, while primarily designed for cooperation with the compound gear 26, also function as a part of the guide means and sealing means.

The recesses in the sash may be covered by means of plates 39. These plates are preferably made from thin sheet metal and may be secured to the sashes by means of screws and the like. In Figure 2, I have shown means for holding the gear 35 correctly in mesh with the rack 34. A sleeve member 40 is provided with internal threads for receiving a threaded shank 41 associated with a contact member 42. The latter is positioned against the sleeves 24 and 30.

The sleeve 40 may be rotated for bending the rods a slight distance at which time the gear will be firmly supported in mesh with the rack. A very slight adjustment will sufiice since the rack is aligned with rods 20 and 21 in such a manner that the average assembled device will be properly adjusted.

In assembling, the coil spring 32 is turned until the necessary tension has been provided therein. The spring may be turned in various manners. As soon as the spring has been properly wound, a pin or shaft may be passed through an opening 43 in the rod 21, see Figure 4. The pin may engage the rod 20 for holding the rod 21 against rotation. The structure is then disposed within the recess in the sash. It will be noted in referring to Figure 6 that the groove 38 in the sash is deeper than the guide 3'7. The rack is of substantially the same thickness as the guide. It will thus be seen that the rack may be moved to a position within the recess for permitting the sash to be pushed into the frame. This is also true with respect to the guide elements. As soon as the sash has been properly positioned, the guide elements, together with the racks, may be made secure to the frame. The rack may be provided with openings for receiving nails and the like. As soon as the gear 35 has been placed in mesh with the rack, the pin in opening 43 is removed. The sash is positioned so that the sash will tend to float in a sense within the frame. In other words, the spring tends to nega-, tive or balance the weight of the sash so that a slight effort in either direction will be suificient to move the sash. The sash is perfectly balanced as soon as a spring mechanism is positioned upon Various amounts of tension may be provided in the springs. Ordinarily, the tension would be such that either of the sashes would remain in any adjusted positions.

While I have shown my invention in connectionwith a frame construction embodying a single guide element for each of the sashes, it will be understood, however, that standard sash and frame constructions may be provided with my mechanism. One important feature is thefact that a very simple frame construction will sufiice. The only frame structure necessary is a sufiicient mounting for the rack and the sealing means.

I claim:

1. A Window balancing device adapted to be vertically mounted in a recessed portion of the side rail of a slidable and movable window sash and being adapted to engage an elongated rack rigidly and vertically mounted on the inner side of a window frame, said device comprising a frame member adapted to be rigidly connected to the window sash, a stationary vertical rod and a rotatable vertical rod, each of said rods being secured at each end to said frame member, a horizontal shaft operatively connected to the 9 stationary rod and the rotatable rod intermediate of their end portions and carrying a rotatable gear wheel adapted to rotate in a vertical plane between said rods, a pinion wheel member rigidly connected to and encircling the rotatable rod and in meshed relation with the gear wheel and a helical spring encircling the rotatable rod and having one end connected to the pinion wheel, the other end being fixedly secured in a stationary position.

2. A window balancing device adapted to be vertically mounted in a recessed portion of the side rail of a slidable and movable window sash and being adapted to engage an elongated rack rigidly and vertically mounted on the inner side of a window frame, said device comprising a frame member adapted to be rigidly connected to the window sash, a stationary vertical rod and a rotatable vertical rod, each of said rods being secured at each end to said frame member, a 119 horizontal shaft operatively connected to the stationary rod and the rotatable rod intermediate of their end portions and carrying a rotatable gear wheelv adapted to rotate in a vertical plane between said rods, a pinion wheel member rigidly connected to and encircling the rotatable rod and in meshed relation with the gear wheel and a helical spring encircling the rotatable rod and having one end connected to the pinion wheel, the other end being fixedly secured in a 120 stationary position, said device being provided with a threaded jack means for pressing said rods and said gear wheel outwardly toward said rack and holding the gear wheel in meshed relation with the rack.

3. A vertically mounted window balancing device comprising an elongated rack member adapted to be rigidly and vertically mounted on the inside of a window frame, a frame member adapted to be vertically carried in a recessed portion of a side rail of a slidably and vertically movable window sash, a stationary vertical rod and a rotatable vertical rod carried at each end of said frame member, a horizontal shaft rigidly connected to the stationary rod and the rotatable rod intermediate of their end portions, and carrying a gear wheel, a pinion wheel member rigidly connected to and encircling the rotatable rod and in meshed relation with the gear wheel, and

a spiral spring encircling the rotatable rod and having one end connected to the pinion wheel and its other end fixedly secured in astationary position, said gear member being adapted to mesh with said rack, said device being also provided with a jack member for pressing said rods toward said rack and holding the gear Wheel in meshed relation with the rack.

JOHN L. TURNER. 

